2221425155 has 8 divisors (see below), whose sum is σ = 2722427712. Its totient is φ = 1739328448.

The previous prime is 2221425131. The next prime is 2221425161. The reversal of 2221425155 is 5515241222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2221425155 - 2⁸ = 2221424899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4726202 + ... + 4726671.

It is an arithmetic number, because the mean of its divisors is an integer number (340303464).

Almost surely, 2^2221425155 is an apocalyptic number.

2221425155 is a deficient number, since it is larger than the sum of its proper divisors (501002557).

2221425155 is an equidigital number, since it uses as much as digits as its factorization.

2221425155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9452925.

The product of its digits is 8000, while the sum is 29.

The square root of 2221425155 is about 47131.9971463124. The cubic root of 2221425155 is about 1304.7998410983.

Adding to 2221425155 its reverse (5515241222), we get a palindrome (7736666377).

The spelling of 2221425155 in words is "two billion, two hundred twenty-one million, four hundred twenty-five thousand, one hundred fifty-five".